Sensitivity temperature coefficient

KMP010-NT-A7G-XXX Pressure rango Sensitivity Temperature coefficient of output span (TCS) Temperature coefficient of olfeel voltage (TCO) 12 -0.19 -0.05 1.000 20 -0.17 26 -Q.14 +0.05 kPa MV/VkPa W %VK... 

KMP100-NT-AJG-XXX Pressure range Sensitivity Temperature coefficient of output spen (TC ) Temperelure coefficient of offset voltage fTCO) 4 -0.19 -0.05 10 000 5 -017 6 -0.15 +0 05 kPa pV/VkPa %/K %/K... 

Functional parameters FP of a sensor include the sensitivity S, cross sensitivities, temperature coefficient TC, temperature coefficient of sensitivity TCS, offset O, and corresponding TCO. Nonhnearities of TCS and TCO are NLTCS and NLTCO. And we also have hysteresis, burst pressure, hermeticity, and other parameters. These functional parameters need to be described by model parameters MPj, j= l...n, which are appropriate for the processes used to fabricate the device (layer thickness, etching profiles, residual layer stress, etc.). 

The development of active ceramic-polymer composites was undertaken for underwater hydrophones having hydrostatic piezoelectric coefficients larger than those of the commonly used lead zirconate titanate (PZT) ceramics (60—70). It has been demonstrated that certain composite hydrophone materials are two to three orders of magnitude more sensitive than PZT ceramics while satisfying such other requirements as pressure dependency of sensitivity. The idea of composite ferroelectrics has been extended to other appHcations such as ultrasonic transducers for acoustic imaging, thermistors having both negative and positive temperature coefficients of resistance, and active sound absorbers. 

Notice, that with these extremely good resolutions in case of surface sensing contamination of the sensitive layer with solid particles has to be avoided completely, e.g. by an appropriate filtering of the sample solutions. Notice also that the temperature coefficient of the refractive index of water is about 10-4 per °C. So if applying the surface sensing mode using watery solutions indeed a perfect balance of both branches and low temperature gradients have to be aimed at. 

For the calibration of most infrared ear thermometers the sensitivities S0 and R0 and the temperature coefficients Sj and a for both sensors have to be determined. Typically a two-step calibration is performed. In the first step the ambient sensor is calibrated by immersing it into two different temperature controlled baths. In the second step the thermopile sensor is calibrated by measuring the output signal while placing it before two different blackbody radiation sources. 

Adverse effects of fenvalerate on survival of terrestrial arthropods were observed at 0.002 to 0.015 pg whole-body topical application, O.llkg/ha aerial application, 5.4 mg/kg in the soil, 50 mg/kg in the diet, and 1.4 g/ant mound (Table 20.4). Synthetic pyrethroids are more effective in biological systems at low temperatures. The relative sensitivity of insects when compared with mammals is attributed in part to this negative temperature coefficient. Thus, warm-blooded animals are less affected than insects and other poikilotherms (Klaassen etal. 1986). Fenvalerate, for example, showed a negative correlation between temperature and toxicity to crickets (Acheta pennsylvanicus), being up to 1.9 times more toxic at 15°C than at 32°C (Harris etal. 1981). A similar case is made for honey bees (Apis mellifera) (Mayer et al. 1987) and for many species of aquatic invertebrates and fish (Mayer 1987). 

Generally they have a negative temperature coefficient which may be as large as several percent per °C. They have large temperature sensitivity and may detect very small temperature changes. 

The temperature sensitivity of the saturation velocity, Vsat, used in Eq. (4.5) to describe the effect of the lateral field, is additionally considered. The saturation velocity is moderately affected by temperature changes however, when the temperature largely deviates from Tnom. there is a strong effect on the saturation region characteristics of the transistor. The temperature dependence of the saturation velocity is taken into account using the temperature coefficient, AT, [BSIM 3.v3,129] ... 

PATR 2667 R.C. Ling et al, "Temperature Coefficient of Mechanical Sensitivity of Primary Explosives" (Feb I960) (Conf)... 

A sensitive parameter in the coupling between chemical reaction and diffusion can be the temperature. In many cases the temperature coefficients are markedly different, and a shift of temperature can have a striking effect on systems coupling, compared with temperature effects on simpler molecules. 

Mixed Metallic Oxides 170 to 470 0.1 to 0.2 Temperature coefficient large and negative. Much higher sensitivity and resistance than... 

Thermistors, or thermally sensitive resistors," are semiconductors which have high negative temperature coefficients of resistance. There is no simple re-... 

The coefficients for Pt are A = 4 x 10 3, B = 5.8 x 10 7, and po = 1 x 10-5 Q cm. With these parameters, the sensitivity, expressed as the temperature coefficient, is 0.4%°C 1 over a wide range of temperatures. Resistivities of other metals, as well as their temperature coefficients, are tabulated in standard reference tables (e.g., the CRC Handbook of Chemistry and Physics, 2006). Because the geometry of the resistor does not change with temperature, (3.8) is often written in terms of change of resistance R. Because of their chemical inertness and high temperature coefficient, platinum resistors are most common. They are the key part of the most successful thermal sensors, pellistors, which are discussed in Section 3.6.2. 

The relative contribution of these two processes is controlled by the average pore size. It is therefore possible to optimize the temperature sensitivity by the judicious choice of the porosity of the diffusion barrier layer (Vacek et al., 1986). The temperature coefficient of the sensor with 0.1-0.2 pm average pore diameter is 0.04%/°C between 640°C and 800°C. 

There are numerous uses for resistors with high values of the temperature coefficient of resistance (TCR) and they may be negative (NTC) or positive (PTC). An obvious application is in temperature indicators that use negligible power to monitor resistance changes. Compensation for the variation of the properties of other components with temperature may sometimes be possible in this case the applied power may be appreciable and the resulting effect on the temperature-sensitive resistor (TSR) must be taken into account. 

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